when creating animation gif colours dissapear?

hey sorry im kind of new 2 this and i read 1 of ur tutorials and decided to make a animated gif....i do the frames and everything like it says in the tutorial but when i go to save optimized as then save it as a gif....i go to open it and find that most the colours have dissapeared or changed.

It sounds like you are starting in RGB mode (or some other full-color mode) and the colors are being reduced to 256-color when you save as a gif. This is unavoidable as gif is a 256-color format. Before you save the animation, try changing the color mode (Image > Mode > Indexed Color). Try getting the colors correct in this mode first, then make the animation.